Domains with DNS TXT v=spf1 +a +mx +ip6:2a01:4f8:120:1407::2 include:_spf.fastmail.gr include:relay.mailchannels.net include:relay.mailchannels.net -all

There are 80 domains that have DNS TXT set to v=spf1 +a +mx +ip6:2a01:4f8:120:1407::2 include:_spf.fastmail.gr include:relay.mailchannels.net include:relay.mailchannels.net -all. The top 50 records ordered by domain rank are listed below.